spannungsfrei
de-energized
dead circuit
dead in live working
dead
deprecated
free from strain
free of stresses
free of tension
idle
insulated
isolated
off circuit
off-load
relaced
strain-free
stress-free
stress-less
stress-relieved
stressless
tensionless
under zero tension
unrestrained
unstressed
voltage-free
voltageless
zero potential